On 19-okt-2007, at 22:47, Ralph Droms wrote:
Reading the latest liaison statement, starting with the title "DSL Subscriber Authentication using DHCP" and the request for the IETF to take on draft-pruss-dhcp-auth-dsl and/or draft-zhao-dhc-user- authentication-02 as a work item, leads me to believe the DSLF is asking now for a DHCP solution rather than, more generally, an L3- based access authentication protocol. If the int-area discussion leads to consensus that DHCP is not the right basis for "subscriber authentication", I suspect we will need to build a solid case arguing for some other solution in our response to the DSLF.
Speaking as an individual IETF contributor, I don't think we have enough information to make a good judgment about whether to adopt a DHCP-based solution as a work item, or whether some other standards can be composed into a solution.
I'm not sure what the normal procedure is in these cases, but it seems advantageous to me to make the DSL Forum aware of the content of our discussion in the past weeks. Based on that, the DSL Forum may decide it's a good idea to explore PANA or 802.1x. Or they may want to stick to a DHCP solution, in which case I'm very interested in learning their opinion about the difficulties with modifying existing DHCP implementations and how to handle IPv6.
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